Colowyo Mine has been honored for its partnership in some of the first Greater Sage-grouse research projects in northwest Colorado since 2001.
Tri-State's 2016 Annual Meeting featured Wyoming Governor Matt Mead, who discussed the regulatory challenges for coal-based electricity.
To say Tri-State’s first annual business clothing drive was a success would be an understatement.
On Feb. 9, 2016, the U.S. Supreme Court granted the applications of numerous parties, including Tri-State, to stay EPA's Clean Power Plan.
For 18 years, Tri-State and its Touchstone Energy member cooperatives have supported Denver's National Western Stock Show.
Draft environmental assessment for the Collom Area Development Project at Colowyo Mine available for public comment on Jan. 19.
Tri-State member Poudre Valley REA and Silicon Ranch Corporation announce that nearly 100,000 solar panels are generating renewable energy.